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WE43B Magnesium vs. AWS BNi-1a

WE43B magnesium belongs to the magnesium alloys classification, while AWS BNi-1a belongs to the nickel alloys. There are 19 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is WE43B magnesium and the bottom bar is AWS BNi-1a.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
180
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 17
70
Tensile Strength: Ultimate (UTS), MPa 250
450

Thermal Properties

Latent Heat of Fusion, J/g 330
370
Melting Completion (Liquidus), °C 640
1080
Melting Onset (Solidus), °C 550
980
Specific Heat Capacity, J/kg-K 960
500
Thermal Expansion, µm/m-K 27
12

Otherwise Unclassified Properties

Base Metal Price, % relative 34
55
Density, g/cm3 1.9
8.0
Embodied Carbon, kg CO2/kg material 28
8.8
Embodied Energy, MJ/kg 250
120
Embodied Water, L/kg 910
240

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 61
24
Strength to Weight: Axial, points 36
16
Strength to Weight: Bending, points 46
16
Thermal Shock Resistance, points 15
15

Alloy Composition


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Aluminum (Al), % 0
0 to 0.050
Boron (B), % 0
2.8 to 3.5
Carbon (C), % 0
0 to 0.060
Chromium (Cr), % 0
13 to 15
Cobalt (Co), % 0
0 to 0.1
Copper (Cu), % 0 to 0.020
0
Iron (Fe), % 0 to 0.010
4.0 to 5.0
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 89.8 to 93.5
0
Manganese (Mn), % 0 to 0.030
0
Nickel (Ni), % 0 to 0.0050
70.6 to 76.3
Phosphorus (P), % 0
0 to 0.020
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0
4.0 to 5.0
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0
0 to 0.050
Unspecified Rare Earths, % 2.4 to 4.4
0
Yttrium (Y), % 3.7 to 4.3
0
Zinc (Zn), % 0 to 0.2
0
Zirconium (Zr), % 0.4 to 1.0
0 to 0.050
Residuals, % 0
0 to 0.5